Druck ADTS 2XX Calibration Manual
4
K0425 Issue No. 2
2
CALIBRATION
2.1 Calibration Check of Static Channels Ps1 and Ps2
y
Before starting this procedure carry out a leak test.
y
Set the unit to Leak/Measure mode, set operating limits to MAX and disable Auto Leak,
refer to the User manual for further details.
y
Connect the pressure standard to static channels Ps1 and Ps2.
(1)
Make sure that the calibration switch is set to disable.
(2)
Adjust calibration pressure to the first pressure value in Table 2-1.
(3)
Compare the pressure value on the calibration standard to the value displayed and
record the difference.
(4)
Repeat (2) and (3) for pressure No. 2 to 9 in Table 2-1.
(5)
If the recorded difference exceeds the allowable tolerance (*) carry out a calibration
adjustment.
(6)
Adjust calibration standard to atmospheric pressure. Disconnect calibration standard
from the channels Ps1 and Ps2.
(7)
If there is no further calibration or testing required, switch off the unit.
T
ABLE
2-1 S
TATIC
C
HANNEL
C
ALIBRATION
P
RESSURES
*
The tolerance quoted in this table may need to be adjusted to allow for measurement uncertainties of the calibration
standard in use. The limits stated relate to the published, minimum specification for the equipment entering service.
Acceptance limits may vary at the user's discretion for specific applications.
Pressure
No.
Pressure
mbar
Tolerance*
mbar
1
34.98
±0.10
2
71.72
±0.10
3
178.74
±0.10
4
314.85
±0.10
5
465.63
±0.10
6
696.82
±0.10
7
843.07
±0.10
8
1013.25
±0.10
9
1355
±0.10
